ArticleThe Journal of reproduction and development2018
Heat stress impairs gap junction communication and cumulus function of bovine oocytes.
Article in The Journal of reproduction and development, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
17 citing papers in PubMed, 36 citations in OpenAlex.
- Establishment and characterization of Hanwoo cumulus cell line for heat stress studies.Animal bioscience · 2026Article
- Moderate NEFA reprogram early follicular development and oocyte competence: evidence for a targetable redox mechanism.Frontiers in nutrition · 2026Article
- Six things to know about how heat stress compromises fertility of the cow (and probably other mammals as well).The Journal of reproduction and development · 2026Review
- Reciprocal Interactions Between Human GV-Oocytes and Cumulus Cells: Effects on GVBD, ROS Production, and AMPK Expression.Medicina (Kaunas, Lithuania) · 2025Article
- Heat stress affects the functionality of the ovine cumulus-oocyte complex and subsequent in vitro embryo production.Scientific reports · 2025Article
- A Step Toward Understanding Direct Impacts of a Higher Estrus-Associated Temperature (HEAT): Transcript Level Changes in Cumulus-Oocyte Complexes Directly Exposed to Acute Elevated Temperature.Animals : an open access journal from MDPI · 2025Article
- Impact of Heat Stress on Oocyte Developmental Competence and Pre-Implantation Embryo Viability in Cattle.Animals : an open access journal from MDPI · 2024Review
- Heat shock interferes with the amino acid metabolism of bovine cumulus-oocyte complexes in vitro: a multistep analysis.Amino acids · 2024Article
- Review
- 5-Aminolevulinic acid combined with sodium ferrous citrate mitigates effects of heat stress on bovine oocyte developmental competence.The Journal of reproduction and development · 2022Article
- Positive relationship of rectal temperature at fixed timed artificial insemination on pregnancy outcomes in beef cattle.Journal of animal science · 2022Article
- Heat-induced increases in body temperature in lactating dairy cows: impact on the cumulus and granulosa cell transcriptome of the periovulatory follicle.Journal of animal science · 2022Article
- Characterization of the effects of heat stress on autophagy induction in the pig oocyte.Reproductive biology and endocrinology : RB&E · 2021Article
- Impact of an acute heat shock duringAnimal reproduction · 2021Article
- Molecular, functional, and cellular alterations of oocytes and cumulus cells induced by heat stress and shock in animals.Environmental science and pollution research international · 2020Review
- Influence of long-term thermal stress on theAnimal reproduction · 2020Article
- Heat-induced hyperthermia impacts the follicular fluid proteome of the periovulatory follicle in lactating dairy cows.PloS one · 2019Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The intimate association of cumulus cells with one another and with the oocyte is important for regulating oocyte meiotic arrest and resumption. The objective of this study was to determine the effects of heat stress on cumulus cell communication and functions that may be related to accelerated oocyte meiosis during early maturation. Bovine cumulus-oocyte complexes underwent in vitro maturation for up to 6 h at thermoneutral control (38.5°C) or elevated (40.0, 41.0 or 42.0°C) temperatures. Gap junction communication between the cumulus cells and the oocyte was assessed using the fluorescent dye calcein after 4 h of in vitro maturation. Dye transfer was reduced in cumulus-oocyte complexes matured at 41.0°C or 42.0°C; transfer at 40.0°C was similar to control (P < 0.0001). Subsequent staining of oocytes with Hoechst revealed that oocytes matured at 41.0 or 42.0°C contained chromatin at more advanced stages of condensation. Maturation of cumulus-oocyte complexes at elevated temperatures reduced levels of active 5' adenosine monophosphate activated kinase (P = 0.03). Heat stress exposure had no effect on active extracellular-regulated kinase 1/2 in oocytes (P = 0.67), associated cumulus cells (P = 0.60) or intact cumulus-oocyte complexes (P = 0.44). Heat-induced increases in progesterone production by cumulus-oocyte complexes were detected during the first 6 h of maturation (P = 0.001). Heat-induced alterations in gap junction communication and other cumulus-cell functions likely cooperate to accelerate bovine oocyte meiotic progression.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.